/*
 * Copyright 2019 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jbpm.services.api;

import java.util.Collection;

/**
 * Provides means to add deployment event listeners to deployment service.
 */
public interface ListenerSupport {

    /**
     * Adds a new deployment listener.
     * @param listener
     */
	void addListener(DeploymentEventListener listener);

    /**
     * Removes an existing deployment listener.
     * @param listener
     */
    void removeListener(DeploymentEventListener listener);

    /**
     * Returns all deployment listeners
     * @return deployment listeners
     */
    Collection<DeploymentEventListener> getListeners();
}
